<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        @media screen and (min-width:500px){
            body{
                background-color: red;
            } 
        }

        @media screen and (min-width:1000px){
            body{
                background-color: green;
            } 
        }
        
        @media screen and (min-width:1500px){
            body{
                background-color: skyblue;
            } 
        }


    </style>
</head>
<body>
    aaa


    
</body>
</html>